A national border would most likely have the most protection because nation's seek to prevent the import of illegal goods, movement of individuals into the country, and also to protect their borders against potential foreign invasion. Traditionally national borders would have more defenses, army, security forces, and police to protect the border than any of the rest of these borders.
Answer:
Frederick Banting
Explanation:
Discovered Insulin, which is a medicine used all around the world currently.
Commorde perry had a fleet That was technologically superior
“ Hitler made two dramatic foreign policy moves in 1938 that help clarify for the world extent of his less than pacific intentions. In March he annexed Austria to the Reich, justifying the Annexation as a fulfillment of the principle of German national self determination. After this event hitler than engineered a diplomatic crisis with Czechoslovakia, by claiming Czech mistreatment of its German Minolta ty in the Sudetenland.”
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It's number 4 because the point of dikes, and reservoirs in Egypt was to control the flooding to get the most out their agriculture, and to have nutrient rich water for when the river was entirely flooding.